Suspended self-assembled opal membranes

被引：25

作者：

Bohaty, Andrew K. ^{[1
]}

Zharov, Ilya ^{[1
]}

机构：

[1] Univ Utah, Dept Chem, Salt Lake City, UT 84112 USA

来源：

LANGMUIR | 2006年 / 22卷 / 13期

关键词：

D O I：

10.1021/la0602463

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Suspended self-assembled opal membranes have been prepared from 440- or 170-nm-diameter silica spheres by evaporation of their colloidal solutions over vertically oriented 0.3-mm-thick silicon wafers containing frustum-shaped openings. Robust 0.5 x 0.5 mm(2) membranes with a thickness of ca. 300 mu m have been reproducibly prepared using 170 nm silica spheres. The membranes show regular fcc packing with an exposed ( 111) orientation and are formed in a process that involves drawing silica spheres into the opening with the solvent meniscus.

引用

页码：5533 / 5536

页数：4

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